CVE-2026-71321
High · 7.5CVSS
7.5
EPSS
0.7%
Published
Aug 5, 2026
CISA due date
—
The record
Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, the internal island renderer endpoint `/__nuxt_island/...` decodes and hashes attacker-controlled JSON body input with destr and ohash before validating the URL-resident hash. An unauthenticated `POST /__nuxt_island/_.json` with a large JSON body is fully read, parsed, hashed, and then rejected, which wastes CPU on Nitro single event loop and delays concurrent requests. No valid hash and no authentication are required. This issue is fixed in 3.21.10 and 4.5.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-19630 In a BIND resolver, inbound DNS protocol messages with a particular structure will result… CWE-407
- CVE-2026-112894 Pillow is a Python imaging library. CWE-407
- CVE-2026-112891 Pillow is a Python imaging library. CWE-407
- CVE-2026-112401 Pillow is a Python imaging library. CWE-407
- CVE-2026-111766 markdown-it is a Markdown parser. CWE-407
- CVE-2026-111759 markdown-it is a Markdown parser. CWE-407
- CVE-2026-95838 containerd is an open-source container runtime. CWE-407
- CVE-2026-104844 PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does… CWE-407